Mass. state troopers are on the lookout for one , a 51-year-old convicted armed robber who escaped from the Old Colony Correctional Center in Bridgewater on the late afternoon of Friday, Nov. 27.

The state police have called out the Air Wing and K-9 units in addition to officers from the Department of Corrections and troopers assigned to the State Police Violent-Fugitive Apprehension Section.

Brown is described as 5-foot-8 and approximately 145 pounds. He often wears eyeglasses and is said to be "extremely physically fit." He also likes to play chess (though we're not sure why this was important to his description.)